Naturally handcrafted and beautifully designed with great performance, the MI SQUARE Pocket Bluetooth Speaker makes your portable music experience seriously matter. Made with solid natural Asian bamboo, German Cherry and American Walnut wood and powered by a long-lasting integrated rechargeable battery, the MI SQUARE Pocket Bluetooth Speaker is a very handy object to travel with, no matter where you go and what you do. It delivers you seriously great sound in a small and neat natural wood square. The MI SQUARE Pocket Bluetooth Speaker designed by Gingko reflects our design ethos and commitment to modern, stylish and great design. Product Technical Features： Mono 40mm speaker driver Output power: 3W Horn resistance: 4Ω. Strong bass with diaphragm. Powered by Li-polymer rechargeable Battery 500mAh. Premium fabric USB charging cable included. Battery Life: 3-6 hours(depends on the volume). Input power: 5V, 500mA. LED charging/playing/pause indicator.